Anchoring device for connecting manufactured components for the construction of buildings

ABSTRACT

An anchoring device for connecting manufactured components for the construction of buildings comprising an anchoring insert, which can be jointly associated with a first manufactured component and a linking element, which can engage the anchoring insert and can be associated with a second manufactured component, for the transmission of forces from the first manufactured component to the second manufactured component or vice versa.

TECHNICAL FIELD

The present invention relates to an anchoring device for connecting manufactured components for the construction of buildings.

BACKGROUND ART

In the field of the construction of buildings, anchoring devices are known for performing the connection between two manufactured components constituted for example by a prefabricated infilling panel made of reinforced concrete and by a beam made of reinforced concrete or steel.

Currently commercially available anchoring devices can be divided substantially into two types.

The anchoring devices of a first type comprise a first anchoring insert, constituted generally by a profile made of steel that is designed to be embedded partially in a first manufactured component, for example a prefabricated panel made of reinforced concrete, and a second anchoring insert, similar to the first one, which is designed to be embedded partially in a second manufactured component, for example a beam made of reinforced concrete. If the two manufactured components to be connected are constituted by an infilling panel and a beam, the first anchoring insert is arranged vertically in the panel, while the second anchoring insert is arranged horizontally in the beam. The two anchoring inserts, and thus the two manufactured components, are connected to each other by means of connections with screws and bolts which engage anchoring seats formed in the anchoring inserts which can be accessed from outside through a slot-like access opening defined in a wall of the corresponding anchoring insert that is exposed in the corresponding manufactured component. More particularly, the first anchoring insert is engaged by a first linking element, which has a plate-like body that is crossed by a slot and has, proximate to one of its sides, an anchor-like or hammer-like head that can be inserted in the anchoring seat through the access opening and can rotate about its own axis through an angle of 90° so as to abut, with the two wings of the hammer-shaped head, against the inner side of the wall of the first anchoring insert that is crossed by the access opening.

The second insert is engaged by a screw with an anchor-like or hammer-like head, which can be inserted in the anchoring seat through the access opening and can rotate about its own axis through an angle of 90° so as to abut, with the two wings of the hammer-shaped head, against the inner side of the wall of the second anchoring insert that is crossed by the access opening. The shank of the screw is inserted through the slot defined in the plate-like body of the first linking element and, by means of a nut coupled to said screw, the plate-like body of the first linking element is fastened against the second anchoring insert or against the second manufactured component. A small plate with a knurling, which engages a corresponding knurling formed on the face of the plate-like body face against which it rests, is generally interposed between the plate-like body of the first linking element and the second anchoring insert.

Anchoring devices of a second type, particularly widespread on the US market, comprise an anchoring insert, constituted generally by a steel profile designed to be partially embedded in a first manufactured component, for example a prefabricated panel made of reinforced concrete, and a connecting element, which can engage the anchoring insert and can be fixed to a second manufactured component, constituted for example by a beam. The anchoring insert is constituted by a steel profile in which an anchoring seat is provided that can be accessed from outside through an access opening which passes through a wall of the anchoring insert that is exposed in the first manufactured component. In such anchoring seat a block or a threaded nut is provided which faces with its threaded hole said access opening and abuts against the inner face of the wall in which the access opening is defined. The linking element has a plate-like portion and a threaded shank portion that extends from one side of the plate-like portion. A locking nut is arranged on said threaded shank. In such anchoring devices, the linking element, after being inserted with its threaded shank in the anchoring seat through the access opening and after being screwed into the block or threaded nut, is locked with respect to the anchoring insert by tightening of the locking nut against the outer face of the wall in which the access opening is defined and its plate-like portion is fixed, generally by welding, directly to the second manufactured component if it is made of steel or to an element made of steel embedded previously in the body of the second manufactured component, if it is made of reinforced concrete.

In devices of the known type, transmission of the forces between the two manufactured components mutually connected by such devices occurs exclusively by means of the linking element, both when it connects directly the two manufactured components, as in the devices that belong to the second type mentioned above, and when it connects the two manufactured components by means of another linking element, as in the devices that belong to the first type of device.

In particular, the linking element transmits both forces that are oriented at right angles to the wall in which the opening for access to the anchoring seat is defined and forces that are oriented at right angles to them, i.e., parallel to the wall in which the opening for access to the anchoring seat is defined. For this reason, the linking element is subjected both to traction-compression stresses and to shear stresses.

Therefore, in order to obtain an adequate mechanical strength in the connection between two manufactured components, with anchoring devices of the known type it is necessary to increase adequately the dimensions of the linking element, in particular of the region thereof, constituted usually by a threaded portion, that passes through the access opening, with the consequence of an oversizing also of the other components of the device, with increases in space occupation and in production costs.

DISCLOSURE OF THE INVENTION

The aim of the present invention is to solve the problem described above, by providing an anchoring device for connecting manufactured components for the construction of buildings which, with equal space occupation, can have an increased shear strength with respect to the anchoring devices of the known type.

Within this aim, an object of the invention is to provide an anchoring device that is structurally simple and can be manufactured at competitive costs.

Another object of the invention is to provide an anchoring device that is easy and quick to assemble.

This aim and these and other objects that will become better apparent hereinafter are achieved by an anchoring device for connecting manufactured components for the construction of buildings, comprising an anchoring insert, which can be jointly associated with a first manufactured component and defines an anchoring seat which can be accessed from the outside of said first manufactured component through an access opening defined in a wall of said anchoring insert, and a linking element, which can engage said anchoring insert and can be associated with a second manufactured component, characterized in that said linking element comprises a first connecting element, which can be inserted with one of its portions in said anchoring seat through said access opening and can be locked with respect to said anchoring insert at least along a first direction which is substantially perpendicular to said wall of the anchoring insert for the transmission at least of forces oriented substantially along said first direction from said first manufactured component to said second manufactured component or vice versa, and a second connecting element, which can engage said anchoring insert and is adapted to transmit forces oriented along at least one second direction which is substantially perpendicular to said first direction from said first manufactured component to said second manufactured component or vice versa as an alternative to, or in combination with, said first connecting element.

BRIEF DESCRIPTION OF THE DRAWINGS

Further characteristics and advantages of the invention will become better apparent from the description of some preferred but not exclusive embodiments of the device according to the invention, illustrated by way of non-limiting example in the accompanying drawings, wherein:

FIGS. 1 to 4 are views of the device according to the invention in a first embodiment, more particularly:

FIG. 1 is an exploded perspective view of the device;

FIG. 2 is a perspective view of the device, assembled and installed with one of the two manufactured components mutually connected by the device, illustrated in phantom lines for greater clarity;

FIG. 3 is a top plan view of the device according to the invention once installed, with one of the two manufactured components, mutually connected by the device, shown in cross-section along a vertical plane;

FIG. 4 is a side elevation view of the assembled device;

FIGS. 5 to 8 are views of the device according to a second embodiment, more particularly:

FIG. 5 is a partially exploded perspective view of the device according to the invention;

FIG. 6 is a perspective view of the device assembled and installed, with one of the two manufactured components, mutually connected by the device, illustrated in phantom lines for greater clarity;

FIG. 7 is a top plan view of the device according to the invention once installed, with one of the two manufactured components, mutually connected by the device, shown in cross-section along a vertical plane;

FIG. 8 is a side elevation view of the assembled device;

FIGS. 9 to 11 are views of the device according to the invention in a third embodiment, more particularly:

FIG. 9 is a perspective view of the device according to the invention assembled and installed, with one of the two manufactured components, mutually connected by the device, shown in phantom lines for greater clarity;

FIG. 10 is a top plan view of the device according to the invention once installed, with one of the two manufactured components, mutually connected by the device, shown in cross-section along a vertical plane;

FIG. 11 is a side elevation view of the assembled device;

FIGS. 12 to 21 are views of the device according to the invention in a fourth embodiment, more particularly:

FIG. 12 is a perspective view of the device, assembled and installed, with one of the two manufactured components, mutually connected by the device, shown in phantom lines for greater clarity;

FIG. 13 is a perspective view of the assembled device, taken from a different angle than in FIG. 12;

FIG. 14 is a top plan view of the device according to the invention once installed with one of the two manufactured components, mutually connected by the device, shown in cross-section along a vertical plane;

FIG. 15 is a bottom plan view of the device according to the invention once installed, with one of the two manufactured components, mutually connected by the device, shown in cross-section along a vertical plane;

FIG. 16 is a sectional view, taken along the line XVI-XVI of FIG. 15;

FIG. 17 is a sectional view, taken along the line XVII-XVII shown in FIG. 16, of the assembled device;

FIG. 18 is a sectional view, taken along the line XVIII-XVIII, of the assembled device shown in FIG. 16;

FIG. 19 is a sectional view, taken along the line XIX-XIX shown in FIG. 16, of the assembled device;

FIG. 20 is a sectional view, taken along the line XX-XX shown in FIG. 16, of the assembled device;

FIG. 21 is a sectional view, taken along the line XXI-XXI shown in FIG. 16, of the assembled device.

WAYS OF CARRYING OUT THE INVENTION

With reference to the figures, the device according to the invention, generally designated in the different embodiments by the reference numerals 1 a, 1 b, 1 c, 1 d, comprises an anchoring insert 2, which can be associated jointly with a first manufactured component 3 and defines an anchoring seat 4, which can be accessed from the outside of the first manufactured component 3 through an access opening 5 defined in a wall 6 of the anchoring insert 2, and a linking element 7 a, 7 b, 7 c, 7 d, which can engage the anchoring insert 2 and can be associated with a second manufactured component 8.

According to the invention, the linking element 7 a, 7 b, 7 c, 7 d comprises a first connecting element 9 a, 9 b, 9 c, 9 d, which can be inserted with one of its portions in the anchoring seat 4 through the access opening 5 and can be locked with respect to the anchoring insert 2 along at least a first direction, indicated by the arrow 10, which is substantially perpendicular to the wall 6 of the anchoring insert 2 so as to actuate the transmission of at least forces oriented substantially along said first direction 10 from the first manufactured component 3 to the second manufactured component 8 or vice versa, and a second connecting element 11 a, 11 b, 11 c, 11 d, which can engage the anchoring insert 2 and is adapted to transmit forces oriented substantially along at least one second direction, indicated by the arrow 12, which is substantially perpendicular to the first direction 10, from the first manufactured component 3 to the second manufactured component 8 or vice versa as an alternative to, or in combination with, the first connecting element 9 a, 9 b, 9 c, 9 d.

More particularly, the anchoring insert 2 is constituted preferably, in a manner known per se, by a channel-shaped profile which defines, in its interior, the anchoring seat 4 and can be embedded at least partially, in a manner known per se, in the first manufactured component 3, which is constituted, for example, by an infilling panel made of reinforced concrete. The anchoring insert 2 can be constituted by a profile made of steel of the known type commonly known as “slot”, provided with lateral openings 13 that can be used to perform its anchoring, directly or with the aid of further anchoring elements of a known type and not shown, in the concrete that constitutes the body of the first manufactured component 3. At least during the embedding of the anchoring insert 2, the anchoring seat 4 is protected adequately to be prevented from being blocked by the concrete.

In the illustrated embodiments, the profile that constitutes the anchoring insert 2 has, in transverse cross-section, a substantially Ω-like (omega-like) shape and the wall 6 is formed by two portions of the profile which are substantially bent in a C-like shape and face each other so as to define between them the access opening 5, but the shape of the anchoring insert 2 may be also different from the one shown, according to the requirements.

The anchoring insert 2 is embedded in the body of the first manufactured component 3 so that the wall 6 is arranged with its outer face flush or nearly flush with the face of the first manufactured component 3 to be directed toward the second manufactured component 8.

The access opening 5 is constituted by a slot 14, which passes through the wall 6 and, in the illustrated embodiments, runs along the entire length of the profile that constitutes the anchoring insert 2.

The second connecting element 11 a, 11 b, 11 c, 11 d has an engagement portion or nose 15 a, 15 b, 15 c, 15 d, which can be inserted in the slot 14 and can engage by resting against the two mutually facing larger sides that laterally delimit the slot 14. Indeed thanks to the resting of the engagement portion or nose 15 a, 15 b, 15 c, 15 d against the sides that laterally delimit the slot 14, the second connecting element 11 a, 11 b, 11 c, 11 d transmits forces oriented substantially along the second direction 12 from the first manufactured component 3 to the second manufactured component 8 or vice versa.

Conveniently, the second connecting element 11 a, 11 b, 11 c, 11 d has contact shoulders 30 a, 30 b, 30 c, 30 d, which can engage the outer face of the wall 6 of the anchoring insert 2 that is crossed by the slot 14. The engagement portion or nose 15 a, 15 b, 15 c, 15 d protrudes from the supporting surface defined by the contact shoulders 30 a, 30 b, 30 c, 30 d, so as to penetrate into the slot 14, as will become better apparent hereinafter.

Advantageously, as illustrated in the different embodiments, the second connecting element 11 a, 11 b, 11 c, 11 d has a portion that is designed to be connected to the second manufactured component 8 and is connected to the anchoring insert 2 by means of the first connecting element 9 a, 9 b, 9 c, 9 d.

More particularly, the first connecting element 9 a, 9 b, 9 c, 9 d passes through a through hole 16 a, 16 b, 16 c, 16 d, which is defined in an abutment portion 17 a, 17 b, 17 c, 17 d of the second connecting element 11 a, 11 b, 11 c, 11 d, which can be rested against the outer face of the wall 6 of the anchoring insert 2 that is crossed by the slot 14. The abutment portion 17 a, 17 b, 17 c, 17 d defines, with its face to be directed toward the first manufactured component 3 and from which the engagement portion or nose 15 a, 15 b, 15 c, 15 d extends, the contact shoulders 30 a, 30 b, 30 c, 30 d cited above.

The anchoring insert 2, due to its shape, defines, laterally to the slot 14, contact undercuts 18, 19 for an element for locking the first connecting element 9 a, 9 b, 9 c, 9 d.

More particularly, in the first embodiment, illustrated in FIGS. 1 to 4, the first connecting element 9 a comprises a screw 21 a with an anchor-shaped or hammer-shaped head, which constitutes the locking element cited above and can be inserted, by arranging the two wings of the head parallel to the longitudinal extension of the slot 14, through the slot 14, in the anchoring seat 4, and can rotate about the axis of the screw 21 a through an angle of substantially 90° so that the two wings of the head face the contact undercuts 18, 19. With the head of the screw 21 a in this position, the threaded shank of the screw 21 a protrudes from the anchoring seat 4 through the slot 14 and passes through the through hole 16 a defined in the abutment portion 17 a of the second connecting element 11 a. An external nut 20 a is coupled with the threaded shank of the screw 21 a and abuts against the outer face of the anchoring insert 2 with the interposition of the abutment portion 17 a of the second connecting element 11 a. In this embodiment, the engagement portion 15 a is provided as a continuation of the abutment portion 17 a along the axis of the through hole 16 a that passes through both of these portions 15 a and 17 a of the second connecting element 11 a.

In practice, in the first embodiment of the device according to the invention, the tightening of the external nut 20 a along the threaded shank of the screw 21 a causes the engagement of the anchor-shaped or hammer-shaped head of the screw 21 a against the contact undercuts 18, 19 of the anchoring insert 2 and the tightening of the abutment portion 17 a between the external nut 20 a and the outer face of the wall 6 in which the slot 14 is formed. In this condition, the engagement portion 15 a is inserted in the slot 14. With the device thus assembled, the screw 21 a, which together with the external nut 20 a constitutes the first connecting element 9 a, transmits mainly forces that are oriented along the first direction 10 from the first manufactured component 3 to the second manufactured component 8 or vice versa, while the engagement portion or nose 15 a of the second connecting element 11 a transmits forces that are oriented along the second direction 12 from the first manufactured component 3 to the second manufactured component 8 or vice versa. Substantially, the screw 21 a is subjected mainly to traction-compression stresses, while the engagement portion 15 a of the second connecting element 11 a is subjected to shearing stresses.

In this first embodiment, the portion of the second connecting element 11 a that is designed to be connected to the second manufactured component 8 is shaped so as to have two coplanar wings 22 a, which divaricate progressively starting from the abutment portion 17 a toward the second manufactured component 8. Such wings 22 a may be fixed to the second manufactured component 8 by welding, as shown, or by way of other fixing means of a known type.

In the second embodiment, illustrated in FIGS. 5 to 8, the locking element of the first connecting element 9 b is constituted by an internal nut or block 23 b, which is arranged inside the anchoring seat 4 and rests against the contact undercuts 18, 19 defined by the inner face of the wall 6. As illustrated, the internal nut 23 b is pushed against the contact undercuts 18, 19 by a spring 24 b that is interposed between said internal nut 23 b and the wall of the anchoring insert 2 that lies opposite the wall 6. The first connecting element 9 b comprises a screw 21 b with a head having a larger diameter in which a recessed hexagon-shaped seat is defined. Such screw 21 b passes through the through hole 16 b, which is defined in the abutment portion 17 b of the second connecting element 11 b, and is coupled to the threaded hole of the internal nut 23 b, arranged at the slot 14. The head of the screw 21 b, which is accommodated in a seat 25 b defined in the abutment portion 17 b, abuts against the outer face of the wall 6 of the anchoring insert 2 with the interposition of the abutment portion 17 b. In this second embodiment, too, the engagement portion 15 b is provided as a continuation of the abutment portion 17 b along the axis of the through hole 16 b that passes through both of these portions 15 b, 17 b of the second connecting element 11 b.

In practice, in the second embodiment of the device according to the invention, the tightening of the screw 21 b causes the internal nut or block 23 b to engage the contact undercuts 18, 19 of the anchoring insert 2 and the tightening of the abutment portion 17 b between the head of the screw 21 b and the outer face of the wall 6 in which the slot 14 is provided. In this condition, the engagement portion 15 b is inserted in the slot 14. With the device thus assembled, the screw 21 b, which together with the internal nut or block 23 b constitutes the first connecting element 9 b, transmits mainly forces that are oriented along the first direction 10 from the first manufactured component 3 to the second manufactured component 8 or vice versa, whereas the engagement portion or nose 15 b of the second connecting element 11 b transmits forces that are oriented along the second direction 12 from the first manufactured component 3 to the second manufactured component 8 or vice versa. Substantially, the screw 21 b is subjected mainly to traction-compression stresses, whereas the engagement portion 15 b of the second connecting element 11 b is subjected to shearing stresses.

In this second embodiment, too, the portion of the second connecting element 11 b that is designed to be connected to the second manufactured component 8 is shaped so as to have two coplanar wings 22 b, which divaricate progressively starting from the abutment portion 17 b toward the second manufactured component 8.

Such wings 22 b may be fixed to the second manufactured component 8 by welding, as shown, or by way of other fixing means of a known type.

In the third embodiment, illustrated in FIGS. 9 to 11, similarly to the second embodiment, the locking element of the first connecting element 9 c is constituted by an internal nut or block 23 c, which is arranged inside the anchoring seat 4 and rests against the contact undercuts 18, 19 that are defined by the inner face of the wall 6. The internal nut 23 c is pushed against the contact undercuts 18, 19 by a spring 24 c, which is interposed between the internal nut 23 c and the wall of the anchoring insert 2 that lies opposite to the wall 6. The first connecting element 9 c comprises a screw 21 c with a head having an enlarged diameter, in which there is a flush hexagon-shaped seat. Said screw 21 c passes through the through hole 16 c, which is provided in the abutment portion 17 c of the second connecting element 11 c, and engages the threaded hole of the internal nut 23 c, which is arranged at the slot 14. The head of the screw 21 c, which is accommodated in a seat 25 c that is provided in the abutment portion 17 c, abuts against the outer face of the wall 6 of the anchoring insert 2 with the interposition of the abutment portion 17 c.

Differently from the second embodiment, in this third embodiment the engagement portion 15 c is spaced from the abutment portion 17 c along a direction which is parallel to the longitudinal extension of the slot 14.

In practice, in the third embodiment of the device according to the invention, the tightening of the screw 21 c causes the engagement of the internal nut or block 23 c against the contact undercuts 18, 19 of the anchoring insert 2 and the tightening of the abutment portion 17 c between the head of the screw 21 c and the outer face of the wall 6 in which the slot 14 is provided. In this condition, the engagement portion 15 c is inserted in the slot 14. With the device thus assembled, the screw 21 c, which together with the internal nut 23 c constitutes the first connecting element 9 c, transmits forces that are mainly oriented along the first direction 10 from the first manufactured component 3 to the second manufactured component 8 or vice versa, whereas the engagement portion or nose 15 c of the second connecting element 11 c transmits forces that are oriented along the second direction 12 from the first manufactured component 3 to the second manufactured component 8 or vice versa. Substantially, the screw 21 c is subjected mainly to traction-compression stresses, whereas the engagement portion 15 c of the second connecting element 11 c is subjected to shearing stresses.

In the third embodiment, too, the portion of the second connecting element 11 c that is designed to be connected to the second manufactured component 8 is shaped so as to define two coplanar wings 22 c, which divaricate progressively starting from the abutment portion 17 c toward the direction of the second manufactured component 8. Such wings 22 c may be fixed to the second manufactured component 8 by welding, as illustrated, or by way of other fixing means of a known type.

In the fourth embodiment, illustrated in FIGS. 12 to 21, the first connecting element 9 d comprises a screw 21 d with an anchor- or hammer-shaped head, which constitutes the locking element cited above and, by arranging the two wings of the head parallel to the longitudinal extension of the slot 14, can be inserted, through the slot 14, in the anchoring seat 4 and can rotate about the axis of the screw 21 d through an angle of substantially 90° so that the two wings of the head face the contact undercuts 18, 19. With the head of the screw 21 d in this position, the threaded shank of the screw 21 d protrudes from the anchoring seat 4 through the slot 14 and passes through the through hole 16 a provided in the abutment portion 17 d of the second connecting element 11 d. An external nut 20 d mates with the threaded shank of the screw 21 d and abuts against the outer face of the wall 6 of the anchoring insert 2 with the interposition of the abutment portion 17 d of the second connecting element 11 d. In this embodiment, too, similarly to the third embodiment, the engagement portion 15 d is spaced from the abutment portion 17 d along a direction which is parallel to the longitudinal extension of the slot 14.

In practice, in the fourth embodiment of the device according to the invention the tightening of the external nut 20 d along the threaded shank of the screw 21 d causes the anchor-shaped or hammer-shaped head to engage the contact undercuts 18, 19 of the anchoring insert 2 and the tightening of the abutment portion 17 d between the outer nut 20 d and the outer face of the wall 6 in which the slot 14 is provided. In this condition, the engagement portion 15 d is inserted in the slot 14. With the device thus assembled, the screw 21 d, which together with the external nut 20 d constitutes the first connecting element 9 d, transmits mainly forces that are oriented along the first direction 10 from the first manufactured component 3 to the second manufactured component 8 or vice versa, whereas the engagement portion or nose 15 d of the second connecting element lid transmits forces that are oriented along the second direction 12 from the first manufactured component 3 to the second manufactured component 8 or vice versa. Substantially, the screw 21 b is subjected mainly to traction-compression stresses, whereas the engagement portion 15 d of the second connecting element 11 d is subjected predominantly to shear stresses.

In this fourth embodiment, the portion 22 d of the second connecting element 11 d that is designed to be connected to the second manufactured component 8 is substantially plate-shaped. The engagement portion 15 d extends in a coplanar manner from the side of said plate-like portion 22 d designed to face the first manufactured component 3. The abutment portion 17 d extends proximate to said side of the plate-shaped portion 22 d but is raised with respect to the engagement portion 15 d. The plate-like portion 22 d may be fixed to the second manufactured component 8 by means of welding, as shown, or by way of other fixing means of a known type.

For the sake of completeness in description, it must be noted that the wall 6 in which the slot 14 is provided can have, in a manner known per se, knurlings or teeth, as shown in the different embodiments.

The device according to the invention is installed so as to mutually connect two manufactured components 3, 8 by making the first connecting element 9 a, 9 b, 9 c, 9 d engage the second connecting element 11 a, 11 b, 11 c, 11 d and thus the anchoring insert 2 previously embedded in the first manufactured component 3. In this manner, the second connecting element 11 a, 11 b, 11 c, 11 d is firmly connected to the anchoring insert 2 and thus to the first manufactured component 3 by means of the first connecting element 9 a, 9 b, 9 c, 9 d. The second connecting element 11 a, 11 b, 11 c, 11 d is then fixed to the second manufactured component 8 by welding or by way of other fixing means of a known type, by connecting to each other the two manufactured components 3 and 8.

If, as in most cases, the first manufactured component 3 is constituted by an infilling panel, the anchoring insert 2 is embedded in the first manufactured component 3 with the longitudinal axis of the slot 14 arranged substantially vertically and the plane of arrangement of the portion of the second connecting element 11 a, 11 b, 11 c, 11 d, which is shaped like a plate or so as to define two wings 22 a, 22 b, 22 c, 22 d and designed to be connected to the second manufactured component 8, is arranged on a substantially horizontal plane.

In practice it has been found that the anchoring device according to the invention fully achieves the intended aim, since due to the fact that the linking element is composed of a first connecting element designed to be subjected predominantly to traction-compression stresses and a second connection element, in addition to the first connecting element and designed to be subjected predominantly to shearing stresses, with a space occupation equal to that of anchoring devices of a known type, has a greater resistance to shearing stresses.

The anchoring device thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims; all the details may further be replaced with other technically equivalent elements.

In practice, the materials used, although the use of steel is preferred, as well as the dimensions, may be any according to requirements and to the state of the art.

The disclosures in Italian Patent Application No. MI2009A002301 from which this application claims priority are incorporated herein by reference.

Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs. 

1-15. (canceled)
 16. An anchoring device for connecting manufactured components for the construction of buildings, comprising an anchoring insert, which can be jointly associated with a first manufactured component and defines an anchoring seat which can be accessed from the outside of said first manufactured component through an access opening provided in a wall of said anchoring insert, and a linking element, which can engage said anchoring insert and can be associated with a second manufactured component, wherein said linking element comprises a first connecting element, which can be inserted with one of its portions in said anchoring seat through said access opening and can be locked with respect to said anchoring insert at least along a first direction which is substantially perpendicular to said wall of the anchoring insert for the transmission at least of forces oriented substantially along said first direction from said first manufactured component to said second manufactured component or vice versa, and a second connecting element, which can engage said anchoring insert and is adapted to transmit forces oriented along at least one second direction which is substantially perpendicular to said first direction from said first manufactured component to said second manufactured component or vice versa as an alternative to, or in combination with, said first connecting element.
 17. The device according to claim 16, wherein said anchoring insert comprises a profile which defines said anchoring seat and can be embedded at least partially in said first manufactured component with the outer face of said wall arranged substantially flush with the face of said first manufactured component to be directed toward said second manufactured component.
 18. The device according to claim 16, wherein said access opening is constituted by a slot which passes through said wall of the anchoring insert.
 19. The device according to claim 18, wherein said second connecting element has an engagement portion which can be inserted in said slot and can be engaged by resting against the two mutually facing larger sides of said slot.
 20. The device according to claim 18, wherein said second connecting element has contact shoulders which can engage against the outer face of said wall of the anchoring insert that is crossed by said slot.
 21. The device according to claim 19, wherein said anchoring insert has, on an inner side of said wall, laterally to said slot, contact undercuts for a locking element of said first connecting element.
 22. The device according to claim 21, wherein said first connecting element comprises a hammerhead screw; said locking element being constituted by the hammerhead of said screw, which can be inserted in said anchoring seat through said access opening and can rotate about its own axis through an angle of substantially 90° to arrange the two wings of the hammerhead so that they face said contact undercuts; said screw being provided with a shank that protrudes from said anchoring insert and can be coupled to an external nut, which is adapted to abut against the outer face of said wall of the anchoring insert and can be screwed along said stem to fasten said wings of the hammerhead against said contact undercuts.
 23. The device according to claim 21, wherein said locking element is constituted by an internal nut, which is arranged in said anchoring seat at said access opening and abuts against said contact undercuts, and in that said first connecting element comprises a screw which has a shank that can be inserted in said anchoring seat through said access opening and can engage said internal nut; said screw having a head that is adapted to abut against the outer face of said wall of the anchoring insert and being able to be screwed into said internal nut so as to fasten said internal nut against said contact undercuts.
 24. The device according to claim 16, wherein said second connecting element has a portion that is designed to be linked to said second manufactured component and is linked to said anchoring insert through said first connecting element.
 25. The device according to claim 23, wherein said first connecting element passes through a through hole defined in an abutment portion of said second connecting element which can be rested against the outer face of said wall of the anchoring insert that is crossed by said slot, said abutment portion being interposed between the head of said screw or said external nut and the outer face of said wall of the anchoring insert.
 26. The device according to claim 25, wherein said engagement portion is provided as an extension of said abutment portion along the axis of said through hole.
 27. The device according to claim 25, wherein said abutment portion is spaced from said engagement portion along a direction which is parallel to the longitudinal extension of said slot.
 28. The device according to claim 18, wherein a portion of said second connecting element that is designed to be connected to said second manufactured component is substantially plate-shaped.
 29. The device according to claim 28, wherein the portion of said second connecting element that is designed to be connected to said second manufactured component is shaped so as to have two coplanar wings which divaricate progressively in the direction of said second manufactured component.
 30. The device according to claim 28, wherein said anchoring insert is designed to be embedded at least partially in said first manufactured component so that a longitudinal axis of said slot is arranged substantially vertically, and a plane of arrangement of the portion of said second connecting element that is shaped like a plate or so as to form two wings and is designed to be connected to said second manufactured component is arranged on a substantially horizontal plane. 